Security & Testing Agent Skills for HTTP / API

Docker-based test environment management for isolated, reproducible test execution.

Run E2E tests for Sentry JavaScript SDK test applications

Write resilient Playwright e2e tests and testable React UIs.

Orchestrate E2E test triage and fix implementation: runs triage-ci then implement sequentially.

Index of engineering failure-mode skills — routes to the right one for evidence-driven bug hunting, fuzzing, data correctness, resilience…

TDD and coverage standards for Engram. Trigger: When implementing behavior changes in any package.

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

Use when testing Ralph's hat collection presets, validating preset configurations, or auditing the preset library for bugs and UX issues.

PluginEval quality methodology — dimensions, rubrics, statistical methods, and scoring formulas.

Find and fix bugs worth fixing instead of inventing hypothetical edge cases.

F# testing patterns with xUnit, FsUnit, Unquote, FsCheck property-based testing, integration tests, and test organization best practices.

Pytest testing patterns for Python. Trigger: When writing or refactoring pytest tests (fixtures, mocking, parametrize, markers). For…

Retrieve and analyze simulation results from a Coval run.

Go testing patterns for Gentleman.Dots, including Bubbletea TUI testing.

Grade specified test methods individually and produce a concise PR-ready table with each fully qualified test name, an A-F grade, score…

5-dimension harness readiness scorecard from `metaharness score <path>`.

Finds root cause before applying fixes for errors, crashes, regressions, failing tests, broken behavior, and screenshot-reported defects.

Investigate and fix bugs, failing tests, regressions, build failures, or unexpected behavior using boundary localization, evidence, and…

Streamlines frontend JavaScript reverse engineering and security auditing through automated observation, runtime analysis, and environment…

Use this skill when asked to perform any of the following actions in a Java project: - To add jspecify support - To prevent…

Perform a focused, read-only security review of code, configuration, infrastructure, or a diff.